Optical Fiber Coating Gaps for Fusion Splicing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for preparing optical fibers for fusion splicing or termination in connectors are inefficient, requiring repeated use of mechanical or thermal strippers to remove the polymer coating, which consumes time and leaves remnants that hinder proper insertion into connectors.
Innovation Solution
The method involves manufacturing optical fibers with intermittently defined gaps in the polymer coating, allowing for easy exposure of the cladding layer without the need for traditional stripping tools, enabling direct fusion splicing and connector termination with minimal coating removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a uniform polymer coating is applied to the optical fiber, then the fiber is protected from mechanical and chemical damage, but the coating must be stripped away using mechanical or thermal tools which consumes time and leaves remnants
Solution Approach 1:
The continuous polymer coating is segmented into sections with gaps between them. The coating is applied intermittently so that there are coated sections providing protection and gap sections exposing the cladding. This segmentation allows the fiber to maintain protection where needed while having pre-prepared sections ready for splicing or termination without requiring time-consuming stripping operations.
2Reliability
If a uniform polymer coating is applied to the optical fiber, then the fiber is protected, but traditional strippers remove the coating only roughly requiring repeated passes and special cleansing wipes
Solution Approach 1:
The coating is segmented into discrete sections with gaps. The gap sections provide pre-exposed cladding that requires no stripping operation, eliminating the need for mechanical or thermal strippers and special cleansing wipes. This makes the preparation process significantly easier and more reliable.
Solution Approach 2:
Instead of applying a complete coating and then removing it (the traditional approach), the invention inverts the process by applying coating only in sections, leaving gaps where the cladding is intentionally exposed. This eliminates the need for removal operations entirely.
3Ease of operation
If the coating is completely removed from the fiber end, then the fiber can be spliced or terminated, but the fiber lacks protection and requires recoating
Solution Approach 1:
The fiber is manufactured with segmented coating where gap sections provide exposed cladding for splicing and termination operations. After these operations are completed on the gap sections, the fiber can be recoated to provide continuous protection. This segmentation allows easy operation at gap sections while maintaining the option for protection through selective recoating.
Data Source
Figure 1~2
Figure 3
AI summary
A length of optical fiber has a core, a cladding layer surrounding the core and a coating layer applied over the cladding layer along the fiber for protecting the fiber. The coating layer is applied so that gaps of a certain width are defined intermittently in the coating layer over the length of fiber. The gaps in the coating layer have a depth D that is set to expose the cladding layer enough within the gaps so that the exposed cladding layer and the surrounded core can be fusion spliced or terminated with minimal if any required stripping of the coating layer off of the cladding layer.